Helena Valley Regulating Reservoir Weather Forecast

    • 22
    • 42

    Increasing Clouds

    • 29
    • 43

    Mostly Cloudy

    • 33
    • 45

    Chance Rain

    • 29
    • 45

    Chance Rain/Snow

    • 23
    • 41

    Chance Rain/Snow

    • 21
    • 41

    Partly Sunny

Today 21 Feb Helena Valley

Partly cloudy late in the morning then becoming sunny. Near steady temperature in the lower 40s. South Winds 5 to 10 Mph.

Tonight 21 Feb Helena Valley

Mostly cloudy. Lows 20 to 25. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Valley Regulating Reservoir Temperature Statistics

February Temperature

Helena Regional Airport (5.6 miles)

  • Lowest 11 February, 2025

    -23.1 °F

  • Average February

    5.6 °F

  • Highest 1 February, 2025

    43.6 °F

Climate (2020–Present)

Helena Regional Airport (5.6 miles)

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  • Average Low 2020–2025

    35.9 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    59 °F
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